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Solar
pool heating systems
A
solar heating system for your pool is an economical
alternative to conventional heaters.
Solar
collectors capture free energy from the sun and use it
to heat your pool. They can extend your swimming
season and reduce monthly fuel bills, without
depleting non-renewable resources such as fossil
fuels.
In
fact, solar pool heating for your home is the most
economical solar application in Canada today. Solar
heaters already make up over 10 percent of all new
pool heating equipment sales.
Because
of our climate, many Canadian consumers are sceptical
that there is enough sunlight to support a solar pool
heater. In fact, there is more than enough solar
energy for pool owners across Canada to heat their
pools without a back-up heater from May through
September. The chart below shows what daytime
temperatures a solar heater can provide for an
in-ground pool in Ontario during the swimming season.
A solar heater in Ontario will have no difficulty
keeping a pool well above the desired temperature.

Five
good reasons for using solar heating
From
Victoria, British Columbia to St. John's,
Newfoundland, Canadians are using solar energy to heat
their pools. Here are five good reasons why:
No.
1: Solar saves on pool heating costs
In
the last two years, the price of natural gas has more
than doubled. On the other hand, the sun's energy is
free.
Over
a 15-year period, you could spend five times or more
on heating with gas what you would spend on installing
a solar heater today. Once your solar system is
installed there are no more heating bills to pay.
Many
pool owners switch to solar because it meets all of
their heating needs. But even if you continue to use a
gas or electric heater as a backup, solar is a smart
investment that will save you money, year after year.
No.
2: Solar extends your swimming season
Whether or
not you have an existing heater, you can keep your
pool warmer and open longer with free energy from the
sun.
In most areas of Canada, a solar heater used in
combination with a solar pool cover can add two to
four weeks to the beginning and end of the swimming
season. You get a longer swimming season for free.
No.
3: Solar equipment is durable
Solar
equipment often lasts longer than gas or electric
heaters. With proper yearly maintenance, you can
expect fuel heaters to last seven to 10 years. Most
gas heaters have a two-year warranty, and well-made
heat pumps carry a two-year warranty with five-year
warranty on the compressors. Solar panels have a
minimum 10-year warranty and generally last 15 to 20
years or longer.
No.
4: Solar requires less maintenance
Unlike
gas and electric heaters, which should be serviced by
a technician every year, a solar heater requires very
little servicing. Again, that means less cost and less
hassle for the pool owner.
No.
5: Solar energy is good for the environment
These days
we hear a lot about the damaging effect that burning
fossil fuels is having on the environment. Burning
fuels releases nitrogen oxides that cause the
formation of smog in urban areas. Using solar energy
instead of fossil fuels can help reduce this smog.
Burning
fuels also releases carbon dioxide, the main cause of
climate change. Replacing a natural gas or propane
heater with a solar
heater could stop three to 10 tonnes of carbon dioxide
from entering the atmosphere each season. That's about
the same amount produced by operating your car for one
year!
How
does a solar heater work?
A solar
pool heater is simple to operate and doesn't change
the way you operate standard pool equipment.

Solar
collectors are usually mounted on the roof of your
home or another structure such as a shed or a garage.
This is the least expensive option and doesn't take up
extra space on the property. When suitable roof space
is not available, collectors can be ground-mounted on
a rack.
The
existing pool pump is used to circulate water from the
pool through the solar collectors and back to the
pool. On sunny days, an automatic or manual controller
diverts the water to the roof.
Cost
comparison of solar heaters, gas heaters and heat
pumps
A
solar heater is generally more expensive to install
than a gas heater and less expensive than a heat pump.
But, once a solar heater is installed and paid for,
the energy to heat your pool is free.
The
table below shows what a pool owner can expect to pay
to install and maintain a gas heater, heat pump and
solar heater for 15 years. An owner installing a solar
heater would experience significant savings over time.
Solar
heating systems are very easy for the homeowner to
maintain - the only expense is your time. These costs
are based on a natural gas price of $9.13 per
gigajoule and an electricity price of $0.08 per
kilowatt-hour.

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